while (AutoLISP)

Evaluates a test expression, and if it is not nil, evaluates other expressions; repeats this process until the test expression evaluates to nil

Supported Platforms: Windows and Mac OS

Signature

(while testexpr [expr ...])

testexpr

Type: Integer, Real, String, List, Symbol, File, ads_name, T, or nil

The expression containing the test condition.

expr

Type: Integer, Real, String, List, Symbol, File, ads_name, T, or nil

One or more expressions to be evaluated until testexpr is nil.

Return Values

Type: Integer, Real, String, List, Symbol, File, ads_name, T, or nil

The most recent value of the last expr.

Remarks

The while function continues until testexpr is nil.

Examples

The following code calls user function some-func ten times, with test set to 1 through 10. It then returns 11, which is the value of the last expression evaluated:

(setq test 1)
(while (<= test 10)
  (some-func test)
  (setq test (1+ test))
)